SKU: 63672387905
Ships within 48 hours · Estimated delivery Aug 26 - Aug 31
1973-1980 GMC C25/C2500 Pickup
0L L4/121 CID 2022 Audi TT Quattro 2
4L V8 1976 - 1977 GMC K25 Suburban 454/7
7L V8 1958 - 1967 Chevrolet Biscayne 283/4
These Big Block Chevy Upright headers available in 2-1/4" tube diameters are ideal for even big cubic inch Big Block Chevy engines
Carburetor Standard Main Jet - 122-60 cold-air-intake 1973-1980 GMC C25/C2500 PickupOverview: These metering orifices control fuel flow into the metering system. They are rated in flow capacity "cubic centimeters per minute" and are changeable for tuning purposes. The shape of the entry, exit, and size determines flow. All Holley Main jets are flow tested and then stamped with the correct number. Click on Catalog Product Page for complete listing of jets and sizes. Features: Fits All Holley Model 2010, 2300, 4010, 4011, 4150, 4160 &
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